664 PATAGONIAN EXPEDITIONS! BOTANY. 



b. Corolla-tips valvate. Crown-tips cap-like, not spurred, but with horns in the caps. 



Transfer-organs small. Upright weeds. 3. Asclcpias, p. 664. 



b2. Corolla-tips imbricating towards the right. Crown-tips flat. Stigma conical, rostrate, 

 2-partite. Flowers not exceeding I cm. in diameter. Winding shrubs or half shrubs. 



4. Melinia, p. 665. 



1. MITOSTIGMA Dene. 



Tomentose, fruticulose plants, with winding branches and large, cordate 

 leaves, with mid-sized fawers in branching, unilateral cymes. Calyx-leaves 

 small, acute, with alternate glands. Pollen masses pendulous. Corolla 

 rotate-campanulate, its small lobes often hairy internally. Crown none. 

 Gynostegium (hood) small ; stigma flat, with 2 styliform branches. Follicles 

 thick, pointed, woolly. 



Species 4, Argentina. (Fig. in Eng. & Prantl, iv, 2, p. 223, K.) 



M. CORDIFOLIUM (Phil, sub Astephanus] Fourn. 



Stem twining, hollow, puberulous. Leaves deeply cordate-ovate, acute, 

 3 by 2 cm., with petioles i cm. long. Peduncles axillary, subumbellately 

 2-4-flowered. Corolla whitish, subrotate, i cm. diam., externally hairy. 



Chili and Patagon. 



2. TURRIGERA Dene. 



Twining, hairy undershrubs, with small or mid-sized flowers in an axil- 

 lary, racemose cyme. Calyx 5-partite, the divisions acute. Corolla 5- 

 lobed, the lobes dextrorsely overlapping. Crown campanulate, affixed on 

 top of the corolla-tube, 5 or lo-lobed. One pollen-mass in each pollen- 

 sac. Stigma long-rostrate. 



Species 2, in extra-tropical S. Amer., viz. : 



T. INCONSPICUA Dene. 



Leaves linear, glabrous, subsessile. Pedimcles very short, 3-4-flowered. 

 Crown lo-lobed. 



(S. Brazil) ; Patagon., by Golfo de San Jorge. 



T. LESSONII K. Sch. 

 Crown 5-lobed. Chili. 



3. ASCLEPIAS Linn. 



Leaves entire ; flowers in axillary or terminal umbels. Corona of 5 

 concave hoods, each enclosing an incurved horn. Pollen-masses pendu- 

 lous on caulicles. Follicles thick, acuminate. Seeds comose. 



Species 85, mostly American. 



